When I bought my new hearing aids in October, they came with three years' worth of hearing aid batteries from my wonderful audiologist. Today I stopped by to pick up some more and learned that they had switched brands. Previously I was using Rayovac Proline batteries, and what I got today are "Audigy Group" branded batteries, but I'm not sure of the manufacturer.
So far I've noticed that my hearing aids' battery life is dependent on the brand. Energizer standard 312s gave me just a couple days of life while Rayovac Prolines give me a week or so. I'm curious to see how these Audigy Group batteries do. I thought about using a paper calendar and just attaching the strips from the batteries as I put new ones in, but this brand is manufactured without those strips.
So I decided to make a Google Calendar for my batteries. I just set up a new calendar (under "My Calendars" at the left, select Create) and it became one of my half a dozen other calendars in Google. I just add a notation for the day "L (or R) - Rayovac (or Audigy Group, or Energizer, etc)" to tell me which side I switched out and what brand I replaced the battery with.
Have any of you been tracking battery life? What are your results? How do you track it?